package io.datajek.springbasics.moverecommendersystem.lesson11;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Component
public class ContentBasedFilter implements Filter{

	private Logger logger = LoggerFactory.getLogger(this.getClass());
	
	public ContentBasedFilter() {  
		super();
		logger.info("In ContentBasedFilter constructor method");		
	}
	
	@PostConstruct
    private void postConstruct() {
		//将电影加载到缓存中
		logger.info("In ContentBasedFilter postConstruct method");
	}
	
	@PreDestroy
	private void preDestroy() {
		//从缓存中清除电影
		logger.info("In ContentBasedFilter preDestroy method");
	}
	
	//getRecommendations将一部电影作为输入，并返回类似电影的列表。
	public String[] getRecommendations(String movie) {
		
		//计算电影之间的相似度

		//返回电影推荐
		return new String[] {"Happy Feet", "Ice Age", "Shark Tale"};
	}
}